# include <iostream>
using namespace std;
int n,c1,c2;
int main() {
    while(cin >> n >> c1 >> c2 ) {
        int inv = 0;
        int in = 0;
        if(n + c1 + c2 == 0) {
            return 0;
        }
        if(n == 0) {
            cout << c2 <<"\n";
            continue;
        }
        if (n%10 == 0 && c1 == c2 == 0)
        {
            cout << n <<"\n";
            continue;
        }
        if(n%10 == 0)
            n += c2;
        while(n) {
            in = in * 10 + n % 10;
            n /= 10;
        }
        while(in) {
            int c = in % 10;
            if (c == c1) {
                inv = inv * 10 + c2;
            } else {
                inv = inv * 10 + c;
            }
            in /= 10;
            }
            cout << inv << "\n";
    }
}